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class GoogleNewsFields in Views Google News 8

Renders an GoogleNews item based on fields.

Plugin annotation


@ViewsRow(
  id = "google_news_fields",
  title = @Translation("Google News fields"),
  help = @Translation("Display fields as Google News items."),
  theme = "views_view_row_googlenews",
  display_types = {"feed"}
)

Hierarchy

Expanded class hierarchy of GoogleNewsFields

File

src/Plugin/views/row/GoogleNewsFields.php, line 19

Namespace

Drupal\views_googlenews\Plugin\views\row
View source 
class GoogleNewsFields extends RowPluginBase {

  /**
   * Does the row plugin support to add fields to it's output.
   *
   * @var bool
   */
  protected $usesFields = TRUE;

  /**
   * {@inheritdoc}
   */
  protected function defineOptions() {
    $options = parent::defineOptions();
    $options['loc_field'] = [
      'default' => '',
    ];
    $options['news_publication_name_field'] = [
      'default' => '',
    ];
    $options['news_publication_language_field'] = [
      'default' => '',
    ];
    $options['news_access_field'] = [
      'default' => '',
    ];
    $options['news_genres_field'] = [
      'default' => '',
    ];
    $options['news_publication_date_field'] = [
      'default' => '',
    ];
    $options['news_title_field'] = [
      'default' => '',
    ];
    $options['news_keywords_field'] = [
      'default' => '',
    ];
    $options['news_stock_tickers_field'] = [
      'default' => '',
    ];
    return $options;
  }

  /**
   * {@inheritdoc}
   */
  public function buildOptionsForm(&$form, FormStateInterface $form_state) {
    parent::buildOptionsForm($form, $form_state);
    $initial_labels = [
      '' => $this
        ->t('- None -'),
    ];
    $view_fields_labels = $this->displayHandler
      ->getFieldLabels();
    $view_fields_labels = array_merge($initial_labels, $view_fields_labels);
    $form['loc_field'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Location'),
      '#description' => $this
        ->t('The URL to the news (<loc>).'),
      '#options' => $view_fields_labels,
      '#default_value' => $this->options['loc_field'],
      '#required' => TRUE,
    ];
    $form['news_publication_name_field'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Name'),
      '#description' => $this
        ->t('The name of the publication (<news:name>), defaults to the site name.'),
      '#options' => $view_fields_labels,
      '#default_value' => $this->options['news_publication_name_field'],
    ];
    $form['news_publication_language_field'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Language code'),
      '#description' => $this
        ->t('The language code (<news:language>). Must be a language code, will use the default language if not provided.'),
      '#options' => $view_fields_labels,
      '#default_value' => $this->options['news_publication_language_field'],
    ];
    $form['news_access_field'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Access'),
      '#description' => $this
        ->t('Access information (<news:access>), must be Subscription, Registration or an empty string if access is not restricted.'),
      '#options' => $view_fields_labels,
      '#default_value' => $this->options['news_access_field'],
    ];
    $form['news_genres_field'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Genres'),
      '#description' => $this
        ->t('The field that is going to be used as the Google News <news:genres> attribute for each row.'),
      '#options' => $view_fields_labels,
      '#default_value' => $this->options['news_genres_field'],
    ];
    $form['news_publication_date_field'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Publication date'),
      '#description' => $this
        ->t('The publication date of the news (<news:publication_date>).'),
      '#options' => $view_fields_labels,
      '#default_value' => $this->options['news_publication_date_field'],
      '#required' => TRUE,
    ];
    $form['news_title_field'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Title'),
      '#description' => $this
        ->t('The news title (<news:title>).'),
      '#options' => $view_fields_labels,
      '#default_value' => $this->options['news_title_field'],
      '#required' => TRUE,
    ];
    $form['news_keywords_field'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Keywords'),
      '#description' => $this
        ->t('Keywords or tags for this news (Google News <news:keywords>).'),
      '#options' => $view_fields_labels,
      '#default_value' => $this->options['news_keywords_field'],
    ];
    $form['news_stock_tickers_field'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Stock tickers'),
      '#description' => $this
        ->t('Stock ticker references (<news:stock_tickers>)'),
      '#options' => $view_fields_labels,
      '#default_value' => $this->options['news_stock_tickers_field'],
    ];
    $form['documentation'] = [
      '#type' => 'item',
      '#title' => $this
        ->t('Documentation'),
      '#markup' => $this
        ->t('See <a href="@url">the Google News Sitemap reference</a> for more information', [
        '@url' => 'https://support.google.com/news/publisher/answer/74288?hl=en#tagdefinitions',
      ]),
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function validate() {
    $errors = parent::validate();

    // @todo Add validation.
    return $errors;
  }

  /**
   * {@inheritdoc}
   */
  public function render($row) {

    // Create the Google News item array.
    $item = [];
    $row_index = $this->view->row_index;
    $item['loc'] = $this
      ->getField($row_index, $this->options['loc_field']);
    $item['news_publication_name'] = $this
      ->getField($row_index, $this->options['news_publication_name_field']);
    $item['news_publication_language'] = $this
      ->getField($row_index, $this->options['news_publication_language_field']);
    if ($this->options['news_access_field']) {
      $item['news_access'] = $this
        ->getField($row_index, $this->options['news_access_field']);
    }
    if ($this->options['news_genres_field']) {
      $item['news_genres'] = $this
        ->getField($row_index, $this->options['news_genres_field']);
    }
    $item['news_publication_date'] = $this
      ->getField($row_index, $this->options['news_publication_date_field']);
    $item['news_title'] = $this
      ->getField($row_index, $this->options['news_title_field']);
    if ($this->options['news_keywords_field']) {
      $item['news_keywords'] = $this
        ->getField($row_index, $this->options['news_keywords_field']);
    }
    if ($this->options['news_stock_tickers_field']) {
      $item['news_stock_tickers'] = $this
        ->getField($row_index, $this->options['news_stock_tickers_field']);
    }

    // Remove empty attributes.
    $item = array_filter($item);
    $build = [
      '#theme' => $this
        ->themeFunctions(),
      '#view' => $this->view,
      '#options' => $this->options,
      '#row' => $item,
      '#field_alias' => isset($this->field_alias) ? $this->field_alias : '',
    ];
    return $build;
  }

  /**
   * Retrieves a views field value from the style plugin.
   *
   * @param int $index
   *   The index count of the row as expected by views_plugin_style::getField().
   * @param int $field_id
   *   The ID assigned to the required field in the display.
   *
   * @return string
   *   The field value.
   */
  public function getField($index, $field_id) {
    if (empty($this->view->style_plugin) || !is_object($this->view->style_plugin) || empty($field_id)) {
      return '';
    }
    return $this->view->style_plugin
      ->getField($index, $field_id);
  }

}

Members

Namesort descending Modifiers Type Description Overrides
DependencySerializationTrait::$_entityStorages protected property An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds protected property An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep public function 1
DependencySerializationTrait::__wakeup public function 2
GoogleNewsFields::$usesFields protected property Does the row plugin support to add fields to it's output. Overrides RowPluginBase::$usesFields
GoogleNewsFields::buildOptionsForm public function Provide a form for setting options. Overrides RowPluginBase::buildOptionsForm
GoogleNewsFields::defineOptions protected function Information about options for all kinds of purposes will be held here. Overrides RowPluginBase::defineOptions
GoogleNewsFields::getField public function Retrieves a views field value from the style plugin.
GoogleNewsFields::render public function Render a row object. This usually passes through to a theme template of some form, but not always. Overrides RowPluginBase::render
GoogleNewsFields::validate public function Validate that the plugin is correct and can be saved. Overrides PluginBase::validate
MessengerTrait::$messenger protected property The messenger. 29
MessengerTrait::messenger public function Gets the messenger. 29
MessengerTrait::setMessenger public function Sets the messenger.
PluginBase::$configuration protected property Configuration information passed into the plugin. 1
PluginBase::$definition public property Plugins's definition
PluginBase::$displayHandler public property The display object this plugin is for.
PluginBase::$options public property Options for this plugin will be held here.
PluginBase::$pluginDefinition protected property The plugin implementation definition. 1
PluginBase::$pluginId protected property The plugin_id.
PluginBase::$renderer protected property Stores the render API renderer. 3
PluginBase::$view public property The top object of a view. 1
PluginBase::calculateDependencies public function Calculates dependencies for the configured plugin. Overrides DependentPluginInterface::calculateDependencies 14
PluginBase::create public static function Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create 62
PluginBase::DERIVATIVE_SEPARATOR constant A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::destroy public function Clears a plugin. Overrides ViewsPluginInterface::destroy 2
PluginBase::doFilterByDefinedOptions protected function Do the work to filter out stored options depending on the defined options.
PluginBase::filterByDefinedOptions public function Filter out stored options depending on the defined options. Overrides ViewsPluginInterface::filterByDefinedOptions
PluginBase::getAvailableGlobalTokens public function Returns an array of available token replacements. Overrides ViewsPluginInterface::getAvailableGlobalTokens
PluginBase::getBaseId public function Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId public function Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition public function Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition 3
PluginBase::getPluginId public function Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::getProvider public function Returns the plugin provider. Overrides ViewsPluginInterface::getProvider
PluginBase::getRenderer protected function Returns the render API renderer. 1
PluginBase::globalTokenForm public function Adds elements for available core tokens to a form. Overrides ViewsPluginInterface::globalTokenForm
PluginBase::globalTokenReplace public function Returns a string with any core tokens replaced. Overrides ViewsPluginInterface::globalTokenReplace
PluginBase::INCLUDE_ENTITY constant Include entity row languages when listing languages.
PluginBase::INCLUDE_NEGOTIATED constant Include negotiated languages when listing languages.
PluginBase::init public function Initialize the plugin. Overrides ViewsPluginInterface::init 8
PluginBase::isConfigurable public function Determines if the plugin is configurable.
PluginBase::listLanguages protected function Makes an array of languages, optionally including special languages.
PluginBase::pluginTitle public function Return the human readable name of the display. Overrides ViewsPluginInterface::pluginTitle
PluginBase::preRenderAddFieldsetMarkup public static function Moves form elements into fieldsets for presentation purposes. Overrides ViewsPluginInterface::preRenderAddFieldsetMarkup
PluginBase::preRenderFlattenData public static function Flattens the structure of form elements. Overrides ViewsPluginInterface::preRenderFlattenData
PluginBase::queryLanguageSubstitutions public static function Returns substitutions for Views queries for languages.
PluginBase::setOptionDefaults protected function Fills up the options of the plugin with defaults.
PluginBase::summaryTitle public function Returns the summary of the settings in the display. Overrides ViewsPluginInterface::summaryTitle 6
PluginBase::themeFunctions public function Provide a full list of possible theme templates used by this style. Overrides ViewsPluginInterface::themeFunctions 1
PluginBase::trustedCallbacks public static function Lists the trusted callbacks provided by the implementing class. Overrides TrustedCallbackInterface::trustedCallbacks 6
PluginBase::unpackOptions public function Unpack options over our existing defaults, drilling down into arrays so that defaults don't get totally blown away. Overrides ViewsPluginInterface::unpackOptions
PluginBase::usesOptions public function Returns the usesOptions property. Overrides ViewsPluginInterface::usesOptions 8
PluginBase::viewsTokenReplace protected function Replaces Views' tokens in a given string. The resulting string will be sanitized with Xss::filterAdmin. 1
PluginBase::VIEWS_QUERY_LANGUAGE_SITE_DEFAULT constant Query string to indicate the site default language.
PluginBase::__construct public function Constructs a PluginBase object. Overrides PluginBase::__construct
RowPluginBase::$usesOptions protected property Denotes whether the plugin has an additional options form. Overrides PluginBase::$usesOptions 1
RowPluginBase::preRender public function Allow the style to do stuff before each row is rendered. 4
RowPluginBase::query public function Add anything to the query that we might need to. Overrides PluginBase::query 2
RowPluginBase::submitOptionsForm public function Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data. Overrides PluginBase::submitOptionsForm 1
RowPluginBase::usesFields public function Returns the usesFields property. 4
RowPluginBase::validateOptionsForm public function Validate the options form. Overrides PluginBase::validateOptionsForm 1
StringTranslationTrait::$stringTranslation protected property The string translation service. 1
StringTranslationTrait::formatPlural protected function Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals protected function Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation protected function Gets the string translation service.
StringTranslationTrait::setStringTranslation public function Sets the string translation service to use. 2
StringTranslationTrait::t protected function Translates a string to the current language or to a given language.
TrustedCallbackInterface::THROW_EXCEPTION constant Untrusted callbacks throw exceptions.
TrustedCallbackInterface::TRIGGER_SILENCED_DEPRECATION constant Untrusted callbacks trigger silenced E_USER_DEPRECATION errors.
TrustedCallbackInterface::TRIGGER_WARNING constant Untrusted callbacks trigger E_USER_WARNING errors.